from fastapi import APIRouter, Depends, HTTPException
from pydantic import BaseModel
from typing import List, Optional
from app.api.deps import get_current_user

router = APIRouter()


class OrderItem(BaseModel):
    product_id: int
    quantity: int
    price: float


class CreateOrder(BaseModel):
    items: List[OrderItem]
    shipping_address: str


@router.post("/", summary="创建订单")
async def create_order(order_data: CreateOrder, current_user: dict = Depends(get_current_user)):
    """
    4.1: 将结算商品展示到订单页面并创建订单
    """
    # TODO: Implement actual order creation
    return {
        "message": "订单创建成功",
        "order_id": "12345",
        "user_id": current_user.get("user_id"),
        "items": order_data.items,
        "total_amount": sum(item.price * item.quantity for item in order_data.items)
    }


@router.get("/{order_id}", summary="获取订单详情")
async def get_order_detail(order_id: str, current_user: dict = Depends(get_current_user)):
    """
    获取订单详细信息
    """
    # TODO: Implement actual order detail retrieval
    return {"message": f"获取订单详情 {order_id}", "order_id": order_id}


@router.post("/{order_id}/pay", summary="支付订单")
async def pay_order(order_id: str, current_user: dict = Depends(get_current_user)):
    """
    4.2: 支付宝支付功能
    """
    # TODO: Implement actual Alipay payment integration
    return {
        "message": "支付处理中",
        "order_id": order_id,
        "payment_url": "https://openapi.alipay.com/gateway.do?...",
        "payment_method": "alipay"
    }


@router.post("/{order_id}/payment/callback", summary="支付回调")
async def payment_callback(order_id: str):
    """
    支付宝支付回调处理
    """
    # TODO: Implement actual payment callback handling
    return {"message": "支付回调处理成功", "order_id": order_id, "status": "paid"}